Marking die



Oct. 25,1927. 1,646,413

A. LOSSMANN MARKING DIE Filed Aug. 23, 1926 P49. 1.

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A TTORNE Y.

Patented Oct. 25, 1927.

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"Iliis'd'nvention" relates: to i improvements: :in marking diea v It is thephject of the invention 'tOjPl'O, aide aano vel "and-I simplified type of marking, dies which canbe ecooramica'llyr n ranuface tured and; which will operatev as -:e f'r'ectively as the niore' expensive marking/ diesal-reretm forensedl. The particular die herein disclosed is used in marking shoe uppers to indicate lines of stitching to be made subsequently thereon. The devices heretofore commonly used for this purpose have been milled from solid brass and have been comparativelyvery expensive. It is my purpose to provide at agreatly reduced cost an equally satisfactory die which can be assembled on shortnotice from readily obtainable materials and without the use of expensive machinery.

In the drawings:

Figurel is a plan view of a die embodying this invention.

Figure 2 is a detail view taken on the section indicated at 2-2 in Figure 1.

Figure 3 is a detail view taken on the section indicated at 3-3 in Figure 2.

Like parts are identified by the same reference characters throughout the several views.

The mounting plate 5 of the die has heretofore had the knives or ridge 6 formed integrally therewith. In accordance with the present invention, however, the knives 6 are made from narrow strips of sheetmetal bent to the proper form and rigidly supported fro-m the mounting plate to have the effect of an integral structure at only a small portion of the cost thereof. It will be understood that the knives 6 do notcut the work in this particular embodiment of the invention, but merely operate to deposit a marking fluid or to make a crease, or both, upon the work to designate a line of stitching for a subsequent operation.

In order to fix the knives 6 on edge on the surface of the mounting plate 5 with the necessary rigidity, I make use of an anchorage plate 7 in which I cut slots 8 of just the width of the strips of metal which are to be used to make the knives 6. These slots may, if desired, be continuous throughout the length of any given knife; but in order to provide for greater strength, I find it convenient in some instances to make the slots discontinuous by leaving narrow tongues 9 of metal integrally connecting the portions of 'theuanehorageplate:71'uponicitlier' duced into the slot, being readily shaped to conform to the predetermined course of the slot as clearly shown in the drawings. The introduction of the knife preferably occurs prior to the attachment of the anchorage plate 7 to the mounting plate 5.

The knife is now soldered to the anchorage plate and the anchorage plate secured by rivets 11 to the mounting plate.

By referring to Figure 2 it will be noted that the mounting plate 5 and anchorage plate 7 comprise a unitary assembly. and the slot- 8, which is out" completely through the anchorage plate, is backed up by the uncut wall of the mounting plate to providea .narrow and shallow channel in which the solder indicated at 12 securely and rigidly anchors the upstanding knife 6. When the device is in use, all pressures are transmitted directly from the knife to the mounting or backing plate 5 and it remains for the anchorage plate 7 only to fix the position of the knife erect withreference to the rfnounting plate and in contact with its surace.

WVhile I have illustrated a double die for a particular purpose and while I have described particular metals as being adapted for use in the manufacture of dies for this purpose, it will be understood that I do not wish to be limited, except as expressly indicated in the following claims, to these details of construction.

I claim:

1. In a deviceof the character described, the combination with a slotted anchorage plate and a mounting plate presenting uncutportions beneath said slots, said plates being secured together, of knives fixed on edge in said slots by means independent of the connection between the plates and backed by said mounting plate.

2. In a device of the character described, the combination with an anchorage plate and a mounting plate fixed together, said anchorage plate being slotted and said mounting plate being arranged to present its surface at the back of said slot, of a knife soldered to said anchorage plate within said 3. In a device of the character described,

the combination with an anchorage plate and a mounting plate fixed together by means extending through both plates to comprise a unitary structure, said anchorage plate being slotted and said mounting plate presenting its surface behind said slot, of a knife arranged on edge in abutment with said mounting plate and projecting through said slot, together with means independent of the connections between the plates securing said knife insaid position' 4. In a device of the character described,

the combination 'Wlth a mounting'plate, of

an anchorage plate secured theretoand provided with a discontinuous, slot interrupted by tongues integrally connecting portions of said anchorage plate upon either side of the course of said slot, anda knife "fitted to'a plurality of port-ions of said discontinuous slot and fixed on edgetherein in abutment with said mounting plate, said knife being I slot and riveted to: said anchorage plate in abutment with the edge of said knife.

AUGUST LOSSMANN- 

